renamed "*srcSet" to "*srcset"

lib/single-file/single-file-core.js

@@ -410,7 +410,7 @@ const SingleFileCore = (() => {
 				DomProcessorHelper.processAttribute(this.doc.querySelectorAll("video[poster]"), "poster", this.baseURI),
 				DomProcessorHelper.processAttribute(this.doc.querySelectorAll("*[background]"), "background", this.baseURI),
 				DomProcessorHelper.processAttribute(this.doc.querySelectorAll("image, use"), "xlink:href", this.baseURI),
-				DomProcessorHelper.processSrcSet(this.doc.querySelectorAll("[srcset]"), this.baseURI, this.dom)
+				DomProcessorHelper.processSrcset(this.doc.querySelectorAll("[srcset]"), this.baseURI, this.dom)
 			]);
 		}
 
@@ -586,21 +586,21 @@ const SingleFileCore = (() => {
 			}));
 		}
 
-		static async processSrcSet(resourceElements, baseURI, dom) {
+		static async processSrcset(resourceElements, baseURI, dom) {
 			await Promise.all(Array.from(resourceElements).map(async resourceElement => {
-				const srcSet = dom.parseSrcSet(resourceElement.getAttribute("srcset"));
-				const srcSetValues = await Promise.all(srcSet.map(async srcSetValue => {
-					const resourceURL = DomUtil.normalizeURL(srcSetValue.url);
+				const srcset = dom.parseSrcset(resourceElement.getAttribute("srcset"));
+				const srcsetValues = await Promise.all(srcset.map(async srcsetValue => {
+					const resourceURL = DomUtil.normalizeURL(srcsetValue.url);
 					if (resourceURL && resourceURL != baseURI && DomUtil.testValidPath(resourceURL)) {
 						try {
 							const dataURI = await batchRequest.addURL(new URL(resourceURL, baseURI).href);
-							return dataURI + (srcSetValue.w ? " " + srcSetValue.w + "w" : srcSetValue.d ? " " + srcSetValue.d + "x" : "");
+							return dataURI + (srcsetValue.w ? " " + srcsetValue.w + "w" : srcsetValue.d ? " " + srcsetValue.d + "x" : "");
 						} catch (e) {
 							// ignored
 						}
 					}
 				}));
-				resourceElement.setAttribute("srcset", srcSetValues.join(","));
+				resourceElement.setAttribute("srcset", srcsetValues.join(","));
 			}));
 		}
 	}